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Increase in entropy
humid air is lighter that an equal volume of dry air at the same temperature.
Nitrogen, oxygen (including ozone), carbon dioxide
Because the higher you go, the less air molecules there are.
0.780 Atm
WUB
The temperature of the air is a measure of the degree of molecular movement of all the Nitrogen and Oxygen molecules that largely make up air. Technically, it is determined by getting the average speed of a body's molecules.
A thermometer. Temperture is the measure of the kinetic energy, Aka speed, of molecules.
They do have the same average speed ... it's called the air temprature. I believe you need to define average for yourself.
The speed of gas molecules is primarily determined by their temperature, not their specific identity. At the same temperature, bromine molecules and air molecules would have similar average speeds.
Air is 21% oxygen so 21% of 200 is 42 oxygen molecules.
Oxygen and nitrogen have equal average kinetic energy per molecule at room temperature. This is assuming that both oxygen and nitrogen molecules are in fact at room temperature.
air molecules are , nitrogen , oxygen, and carbon dioxide mosly nitrogen (75%)
If mixed together, molecules with various masses will move at different speeds related to their mass.
When air warms the molecules on average move more quickly. If the volume occupied remains the same then the average distance apart remains the same, if the pressure remains the same the air will expand and this means that the air molecules will get farther apart.
When heat touches air molecules they speed up but when cold air touches molecules they slow down.
469.4 m/s